Best of 2025

The blog posts Hacker News loved most in 2025. 2,111 posts.

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365

Don't animate height

Our app was mysteriously using 60% CPU and 25% GPU on my M2 MacBook. It turned out this was due to a tiny CSS animation! In this post, I show how to find expensive animations, why some are so expensive, and how to make many animations much cheaper. Along the way, we'll learn how the browser renders CSS animations and…

380

Cerebras Code

We are launching two new plans designed to make AI coding faster and more accessible: Cerebras Code Pro ($50/month) and Code Max ($200/month). Both plans give you access to Qwen3-Coder , the world’s leading open-weight coding model—running at speeds of up to 2,000 tokens per second , with a 131k-token context window …